Trash bag cinch



FIG. 1 is a view in perspective of a trash bag cinch as seen from the top, front and one side showing my new design;

FIG. 2 is a view in side elevation as seen from opposite that in FIG. 1;

FIG. 3 is a view in rear elevation;

FIG. 4 is a view in top plan; and,

FIG. 5 is a view in bottom plan. 

The ornamental design for a trash bag cinch, as shown and described. 